A NEW ENDEMIC SPECIES OF BEGONIA (BEGONIACEAE) FROM THE SOCOTRA ARCHIPELAGO

2002 ◽  
Vol 59 (2) ◽  
pp. 273-281 ◽  
Author(s):  
M. HUGHES ◽  
A. G. MILLER

The new species Begonia samhaensis, in section Peltaugustia (Warb.) Barkley, is described from the island of Samha in the Socotra archipelago. It differs from the only other species in the section, B. socotrana Hook.f., in a number of gross morphological characters and is likely to be a relict taxon rather than the result of more recent dispersal and divergence. A revision of sect. Peltaugustia is presented. Detailed surveys have been carried out on both species. The new species has a restricted distribution and a total population of fewer than 1000 individuals, and is recommended to be placed in the IUCN category VU D1, 2. Begonia socotrana has been found in new sites, and is locally common in parts of its range. Its current placing in the IUCN ‘Vulnerable’ category is considered to be unwarranted, and it is recommended that the species should be listed as ‘Least Concern’.

Zootaxa ◽  
2021 ◽  
Vol 4927 (2) ◽  
pp. 197-208
Author(s):  
FRANCESCO BALLARIN ◽  
TAKESHI YAMASAKI ◽  
YONG-CHAO SU

Representatives of some poorly known spider species collected in the rainforest litter of the Orchid Island (Taiwan) are illustrated and discussed here. A new species, Brignoliella tao sp. nov. (Fam. Tetrablemmidae), endemic to Orchid Island, is described based on both sexes. The previously unknown female of Theridiosoma triumphale Zhao & Li, 2012 (Fam. Theridiosomatidae), is described for the first time. Zoma taiwanica (Zhang, Zhu & Tso 2006) comb. nov., from the same family, is illustrated and its transfer from the genus Theridiosoma O. Pickard-Cambridge, 1879 to Zoma Saaristo, 1996 is proposed on the basis of morphological characters. Habitus and genitalia of the endemic species Gongylidioides angustus Tu & Li, 2006 (Fam. Linyphiidae) are also illustrated. 


Zootaxa ◽  
2019 ◽  
Vol 4648 (2) ◽  
pp. 273-286
Author(s):  
SANG NGOC NGUYEN ◽  
VU DANG HOANG NGUYEN ◽  
LUAN THANH NGUYEN ◽  
ROBERT W. MURPHY

Ba Den is an isolated mountain in southern Vietnam and home to two endemic species of lizards. Herein, we describe another endemic species, a new skink of the genus Scincella Mittleman, 1950, from the area based on morphological data, including hemipenial characters and nucleotide sequences of COI. The following morphological characters diagnose Scincella badenensis sp. nov.: medium size in adults (snout-vent length up to 64.4 mm); toes reach to fingers when limbs adpressed; midbody scale rows 32–36, smooth; paravertebral scales 67–71; dorsal scales not enlarged; ventral scale rows 68–74; supraoculars four; prefrontals in broad contact with one another; loreal scales two; tympanum deeply sunk, without auricular lobules; two enlarged anterior temporal scales; smooth lamellae beneath toe IV 18–20; pair of enlarged precloacal scales; hemipenes short, smooth and forked near the tip with two short lobes and two small terminal papillae; no dorsal pattern in males; and females with black interruptive vertebral line. The new species differs from its congeners by at least 10.4% uncorrected p-distance in COI sequences. 


Phytotaxa ◽  
2013 ◽  
Vol 99 (1) ◽  
pp. 40 ◽  
Author(s):  
MARC PIGNAL ◽  
ROXANA YOCKTENG ◽  
DAVID J. HEARN ◽  
JEAN-NOËL LABAT

Morphological characters support the description of a new species of Passifloraceae from Mayotte Island: Adenia barthelatii M. Pignal, Yockteng, Hearn & Labat. Morphological and molecular data suggest that A. barthelatii belongs to the ‘warty-gland’ subclade of Clade V defined by Hearn elsewhere. Since the warty-gland clade is restricted to the Malagasy region we suggest a Malagasy origin of this Maorian species of Adenia.


Phytotaxa ◽  
2019 ◽  
Vol 405 (3) ◽  
pp. 121 ◽  
Author(s):  
GILDAS GÂTEBLÉ ◽  
DOMINIQUE FLEUROT ◽  
ULRICH MEVE ◽  
SIGRID LIEDE-SCHUMANN

In the course of the writing of the Flore de la Nouvelle-Calédonie treatment for Asclepiadoideae, Periplocoideae and Secamonoideae, several new species have already arisen partly due to more intensive field work and to a renewed interest in this group of plants. In December 2018, another striking and unorthodox new species was spotted and collected on the flanks of the Kopéto massif mining site. Because this new species has morphological characters from three genera (Dischidia, Gymnema and Marsdenia), further studies, especially molecular, were needed to assess its relationships. These studies show it as a member of one of the New Caledonian Marsdenia subclades. We herein propose to describe it as Marsdenia goromotoorum Gâteblé, Fleurot, Meve & Liede, the only species of Marsdenia in New Caledonia lacking both corolline and gynostegial coronas. It is a micro-endemic species with pinkish-red tubular flowers, growing on serpentines and known from only eight plants. Due to the anthropogenic fire threat, we propose to consider it as Critically Endangered.


Zootaxa ◽  
2018 ◽  
Vol 4374 (3) ◽  
pp. 301 ◽  
Author(s):  
GÉRARD DELVARE ◽  
ROBERT S. COPELAND

Five new species belonging to Dirhinus Dalman are described: D. quadrhinus Delvare sp. nov., D. gigasetosus Delvare sp. nov., D. kambae Delvare sp. nov., D. maasaii Delvare sp. nov. and D. leakeyorum Delvare sp. nov. These species belong to the newly defined and characterized quadrhinus species group, included in the subgenus Dirhinus of Dirhinus Dalman. Evidence for this taxonomic placement is provided despite the distinctive morphology exhibited by the relevant species. The himalayanus, claviger, anthracia and hesperidum groups, also included in subgenus Dirhinus, are similarly defined and characterized and lists of the relevant described species are provided. A key to the females of the quadrhinus group is given. The phylogeny of the genus Dirhinus, especially the other subgenera Pareniaca and Hontalia is discussed as well as the morphological characters the genus Dirhinus in relation to the potential hosts, and the restricted distribution of the members of the quadrhinus group in Kenya.  


Zootaxa ◽  
2021 ◽  
Vol 4985 (1) ◽  
pp. 81-90
Author(s):  
JERRY L. COOK

The family Pleidae is represented in Australia only by members of the genus Paraplea. Paraplea brunni (Kirkaldy, 1898) has a widespread distribution in Australia and is also known from New Guinea. Paraplea halei (Lundblad, 1933) appears to be an endemic species occurring only in the southeastern part of Australia. The widespread species P. liturata (Fieber, 1844) occurs in Australia but only in the Northern Territory and Western Australia. The description of P. bifurcata n. sp. documents a fourth pleid species, being known only from the Northern Territory. Paraplea bifurcata n. sp. is easily differentiated from other species of Paraplea by having a bifurcated abdominal keel. An identification key and discussion of morphological characters of the four species of Paraplea from Australia is given. 


Phytotaxa ◽  
2021 ◽  
Vol 527 (1) ◽  
pp. 60-66
Author(s):  
EVERTON HILO DE SOUZA ◽  
Marcio Leodegario ◽  
LIDYANNE YURIKO SALEME AONA ◽  
FERNANDA VIDIGAL DUARTE SOUZA ◽  
ELTON M. C. LEME

The authors describe, discuss, and illustrate Tillandsia oliveirae, a new species from the inselbergs of the Caatinga biome in the municipality of Itatim, Bahia, Brazil. The new species is similar to T. hofackeri, differing by morphological characters such as larger size of the plant, longer peduncle, more laxly arranged leaves, which are more numerous, and whitish petals. It is an endemic species with a restricted area of distribution, being considered critically endangered (CR) due to illegal extractivism, specifically for regional and international trade.


Phytotaxa ◽  
2020 ◽  
Vol 428 (3) ◽  
pp. 279-289 ◽  
Author(s):  
LUCAS C. MAJURE ◽  
MATIAS KÖHLER ◽  
FABIÁN FONT

Opuntia, the most widespread genus of cacti, occurs throughout the Americas from Patagonia to Canada. Various species have very wide distributions in the Americas, and thus may be considered as both native and aliens. We reexamined data based on recent work on the phylogenetics and taxonomy of Opuntia from southern S-America and showed that two presumed endemic species to Argentina—O. penicilligera and O. ventanensis—are likely derived from, or may be conspecific, with North American species. In particular, O. penicilligera is most closely related to members of the O. macrorhiza species complex and is morphologically similar to both O. macrorhiza and O. cymochila. O. ventanensis shares nearly all vegetative and reproductive morphological characters with O. fragilis and likely is conspecific with that taxon. Owed to the wide distribution of Opuntia species and the movement of many taxa by people, extra care must be exercised when describing new species or for carrying out taxonomic treatments. A phylogenetic perspective, as well as a careful study of species across the distribution of the genus, is recommended.


2020 ◽  
Vol 45 (2) ◽  
pp. 328-333
Author(s):  
Camila Alcantara ◽  
Gleison Soares ◽  
Francisco de Assis Ribeiro dos Santos ◽  
Marccus Alves

Abstract—Justicia rubrobracteata, a new species from northeastern Brazil, is described and illustrated. The new species is morphologically similar to J. aequilabris due to its shrubby habit, and terminal and axillary spicate inflorescences with red flowers. However, J. rubrobracteata is differentiated mainly by the shape and color of its bracts and bracteoles as well as an orangish macula in the corolla, and a torulose capsule. In addition, J. rubrobracteata is only known from northeastern Brazil, from the states of Paraíba and Rio Grande do Norte, while J. aequilabris is widely distributed in Bolivia, Brazil, and Paraguay. A table with the main morphological characters of both species is included, as well as photographs, a key to species of Justicia for the states of Paraíba and Rio Grande do Norte in northeastern Brazil, a distribution map of both species, and conservation data for the new species.


2020 ◽  
Vol 29 (1) ◽  
pp. 138-154
Author(s):  
R.V. Smirnov ◽  
O.V. Zaitseva ◽  
A.A. Vedenin

A new species of Pogonophora obtained from one station at a depth of 25 m from near the Dikson Island in the Kara Sea is described. Galathealinum karaense sp. nov. is one of the largest pogonophorans, the first known representative of the rare genus Galathealinum Kirkegaard, 1956 in the Eurasian part of the Arctic Ocean and a highly unusual finding for the desalted shallow of the Yenisey Gulf. Several characters occurring in the new species are rare or unique among the congeners: under-developed, hardly discernible frills on the tube segments, extremely thin felted fibres in the external layer of the tube, and very faintly separated papillae in the anterior part of the trunk. Morphological characters useful in distinguishing species within the genus Galathealinum are defined and summarised in a table. Diagnosis of the genus Galathealinum is emended and supplemented by new characters. Additionally, three taxonomic keys are provided to the species of Galathealinum and to the known species of the Arctic pogonophorans using either animals or their empty tubes only, with the brief zoogeographical information on each Arctic species.


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